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USB: serial: mos7720: simplify endpoint check

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Simplify the endpoint sanity check by letting core verify that the
required endpoints are present.

Note that the driver expects two bulk-endpoint pairs also for mcs7715
devices for which only one serial port is registered.

Signed-off-by: Johan Hovold <johan@kernel.org>
This commit is contained in:
Johan Hovold 2017-03-02 12:51:27 +01:00
parent 35194572b4
commit 206ff831be
1 changed files with 2 additions and 5 deletions
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7
drivers/usb/serial/mos7720.c
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@ -1900,11 +1900,6 @@ static int mos7720_startup(struct usb_serial *serial)
u16 product;
int ret_val;
if (serial->num_bulk_in < 2 || serial->num_bulk_out < 2) {
dev_err(&serial->interface->dev, "missing bulk endpoints\n");
return -ENODEV;
}
product = le16_to_cpu(serial->dev->descriptor.idProduct);
dev = serial->dev;
@ -2039,6 +2034,8 @@ static struct usb_serial_driver moschip7720_2port_driver = {
},
.description = "Moschip 2 port adapter",
.id_table = id_table,
.num_bulk_in = 2,
.num_bulk_out = 2,
.calc_num_ports = mos77xx_calc_num_ports,
.open = mos7720_open,
.close = mos7720_close,